AMIS-722402 Datasheet, PDF (12/15 Pages) AMI SEMICONDUCTOR – Contact Image Sensor

AMIS-722402: Contact Image Sensor
Data Sheet
Figures 10 to 13 show the timing of the SI/SO. At 2400dpi the SI/SO comes out in line with the 1367^th pixel, at 1200dpi it comes out in
line with the 679^th pixel, at 600dpi it comes out in line with the 335^th pixel, and at 300dpi it comes out in line with the 163^rd pixel.
The SO from the first sensor enters as the SI clock of the second and subsequent sensors; hence all subsequent sensors will start their
register scan after each of the preceding sensors completes its scan.
The last active pixel of each sensor is the 1376^th pixel for the 2400dpi mode, the 688^th pixel for the 1200dpi mode, 344^th pixel for the
600dpi mode, and 172^nd pixel for the 300dpi mode.
CLK ₁₄₄₁
1442
1443
1444
CLK numbers include timing for 75 inactive pixels and 1376 active pixels
SI / SO
1445
1450
1451
1st CLK of second sensor
1
2
Vout
1367
1368
1369
1370
1375
1376
Last active pixel = pixel 1376
Figure 10: Timing of SI/SO Clock for the 2400dpi Mode
1
2
Pixel 1 of second sensor
CLK
753
754
755
756
757
CLK numbers include timing for 75 inactive pixels and 688 active pixels
SI / SO
762
763
1st CLK of second sensor
1
2
Vout
679
680
681
682
687
688
Last active pixel = pixel 688
Figure 11: Timing of SI/SO Clock for the 1200dpi Mode
1
2
Pixel 1 of second sensor
AMI Semiconductor – Jan. 06, M-20499-004
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